The rest of your reply reiterates the usual developer focused "open source" viewpoint while mistakenly suggesting that it's also the focus of free software. The goal of free software has always been user freedom. Source code in the hands of users. It's not about upstream contributions. Having a free library used in a proprietary program does not advance user freedom, though it may lead to a developer improving the library. All the upstream contributions in the world simply do not matter if the user is not entitled to the complete source code of the programs that they use.